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參數(shù)資料
| 型號： | NS486SXLVUL |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Optimized 32-Bit 486-Class Controller with On-Chip Peripherals for Embedded Systems |
| 中文描述： | 優(yōu)化的32位486級控制器的片上外圍設(shè)備的嵌入式系統(tǒng) |
| 文件頁數(shù)： | 1/6頁 |
| 文件大?。?/td> | 466K |
| 代理商： | NS486SXLVUL |
NS486
SXL
Optimized 32-Bit 486-Class Controller with On-Chip
Peripherals for Embedded Systems
General Description
The NS486SXL is a highly integrated embedded system
controller incorporating an Intel486
-class 32-bit processor
along with all of the necessary System Service Elements,
implementing a true “system on a chip.” It is ideally suited for
a wide variety of applications running in a segmented
protect-mode environment. The NS486SXL is the second
member of the NS486 family.
Features
n
100% compatible with VxWorks
, VRTX
, QNX
Neutrino, pSOS +
, and other popular real-time
executives and operating system kernels
n
Intel486 instruction set compatible (protected mode only)
with optimized performance
n
Operation at 25 MHz with 5V supply
n
Low cost 132-pin PQFP package
n
Industry standard interrupt controller, timers, and real
time clock
n
Protected WATCHDOG
timer
n
Optimized DRAM Controller (supports two banks, up to
8 Mbytes each)
n
Up to nine versatile, programmable chip selects
n
Up to eight external interrupts directly supported, and
additional interrupt expansion through an external PIC
interface
n
Glueless interface to ISA-type peripherals
n
Arbitration support for auxiliary processor
n
Support for External Bus Masters, allowing them to
access DRAM and on-chip Peripherals
n
MICROWIRE
/Access.bus synchronous serial
interfaces
n
UART with IrDA v1.0 (Infrared Data Association) port
n
Reconfigurable I/O: Up to 28 I/O pins can be used as
general purpose bidirectional I/O lines
n
Flexible, programmable, multilevel power saving modes
maximize power savings
n
Programming model compatible with the NS486SXF
where possible
Block Diagram NS486SXL Single-Chip Embedded Controller
MICROWIRE
, NS486
and WATCHDOG
are trademarks of National Semiconductor Corporation.
TRI-STATE
is a registered trademark of National Semiconductor Corporation.
Intel486
is a trademaek of Intel Corporation.
pSOS +
is a trademark of Integrated Systems, Inc.
VRTX
is a registered trademark of Microtec Research, Inc.
PowerPack
is a registered trademark of Microtek International.
QNX
is a registered trademark of QNX Software Systems, Inc.
VxWorks
is a registered trademark of Wind River Systems, Inc.
DS100121-1
ADVANCE INFORMATION
December 1997
N
S
1998 National Semiconductor Corporation
DS100121
www.national.com
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